Restore Full Functionality to Your GM Vehicle
Are you battling bizarre electrical gremlins in your 2009-2012 Chevrolet Traverse? Things like power windows with a mind of their own, flickering interior lights, a security system that won’t cooperate, or a frustrating no-start condition can often be traced back to a single, critical component: a failing Body Control Module (BCM). The BCM is the central hub for your vehicle’s body electronics, and when it starts to fail, it can cause a cascade of confusing and inconvenient problems. This isn’t just an annoyance; it can impact your vehicle’s safety and reliability.
Instead of facing a costly trip to the dealership for a new module and expensive programming, we offer a streamlined, reliable solution. This is a direct-replacement Body Control Module, and with our included Cloning Service, it arrives at your door ready to install. We transfer the essential data from your original BCM to this replacement unit, ensuring it communicates perfectly with your vehicle’s other systems right out of the box. This saves you time, money, and the headache of coordinating with a dealer.
Case Study: A Tricky Diagnosis
I remember a 2011 Traverse that came into my shop with a laundry list of complaints from the owner. The radio would turn off randomly, the driver’s side power lock was dead, and worst of all, the car would occasionally refuse to start, leaving the owner stranded. The dash was clean—no check engine light. My initial checks on the battery and alternator were fine. After connecting my scan tool, I noticed several U-codes, specifically U0140 (Lost Communication With Body Control Module), which pointed me directly to the BCM. These communication codes are a classic sign that the module itself is failing internally. Instead of a multi-day wait and a $700+ bill from the dealer, we used a cloned BCM. The customer sent us their old module, we performed the cloning, and they had the part back in a few days. The installation took them less than 30 minutes, and every single electrical issue was resolved instantly. It’s a powerful fix that puts control back in the owner’s hands.
Is Your Vehicle Showing These Symptoms?
- ✔ Intermittent or non-functional power windows, door locks, or interior lighting.
- ✔ The security or anti-theft light stays on, preventing the engine from starting.
- ✔ Warning lights for systems like ABS or Traction Control appear without a clear cause.
- ✔ Unpredictable instrument cluster behavior, such as gauges dropping to zero.
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, like U0140, U0155, or other U-codes.
- ✔ The key fob works intermittently or not at all.
Your Straightforward BCM Installation Guide
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before beginning work.
- ✔ Locate the BCM: On the 2009-2012 Traverse, the Body Control Module is typically located on the left (driver’s) side of the dashboard, often behind the lower dash panel near the steering column.
- ✔ Remove Connectors: Carefully disconnect the multiple wiring harness connectors from the old BCM. They have locking tabs that need to be depressed to be released. Do not force them.
- ✔ Swap the Modules: Unbolt or unclip the original BCM from its mounting bracket and remove it. Install the new, cloned module in its place.
- ✔ Reconnect and Test: Plug all wiring connectors firmly into the new BCM. Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all related functions—windows, locks, lights, wipers, and radio—before starting the engine.
Important Post-Installation Notes
Our cloning service handles the majority of the setup, but some vehicle systems may require a quick sync-up after installation. Please be aware of the following:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a professional scan tool is needed to perform the “Setup SDM Primary Key in BCM” procedure. This is a security handshake between the airbag system and the new BCM.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure correct brake light operation and to clear any related traction control system warnings.
Verified Fitment Across a Wide Range of GM Vehicles
This BCM is a direct replacement for a vast number of GM cars, trucks, and SUVs. Please verify your vehicle and part number below. This module replaces part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084.
Fits models including: Acadia (07-12), Avalanche (10), Caprice (11-13), Captiva Sport (12), CTS (08-13), DTS (06-11), Enclave (08-12), Equinox (07-09), Escalade (10), Express/Savana Vans (08-12), G8 (08-09), Hummer H2 (08-09), Impala (06-13), Lucerne (06-11), Monte Carlo (06-07), Outlook (07-10), SRX (07-09), STS (10), Suburban (10), Tahoe (10), Torrent (07-09), Traverse (09-12), Vue (08-10), Yukon (10), and more. Please consult the detailed fitment list or contact us with your VIN to confirm compatibility.
Frequently Asked Questions
How does the Cloning Service work?
After you place your order, you’ll ship your original BCM to us. We use specialized equipment to extract the vehicle-specific data (like VIN, key information, and options) and flash it onto the replacement module. This makes the new part a perfect digital copy of your old one, eliminating the need for dealer programming.
Will I get my old BCM back?
Yes, absolutely. We always return your original module along with the newly programmed replacement unit. We do not keep customer cores.
Is this a difficult part for a DIYer to install?
For most of the listed vehicles, including the Traverse, the BCM is accessible behind the lower driver-side dash panel. The physical swap is straightforward, requiring basic hand tools. Since our cloning service handles the programming, it’s one of the easiest module replacements you can do.
What if my old BCM is completely dead or not communicating?
In many cases, even if the BCM is causing major issues, the core data on the memory chip is still readable. If for some reason we cannot read your module, we will contact you immediately to discuss other options, which may include programming with your VIN.
Do I need special tools for the post-installation procedures?
The post-install procedures like the Airbag System Sync are not always required. However, if they are, they do require a professional-grade bidirectional scan tool. Most local repair shops can perform these relearn procedures quickly if needed.